Diseased Vermin

Diseased Vermin

Creature — Rat

Whenever Diseased Vermin deals combat damage to a player, put an infection counter on it.

At the beginning of your upkeep, Diseased Vermin deals X damage to target opponent previously dealt damage by it, where X is the number of infection counters on it.

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Set Rarity
Alliances (ALL) Uncommon

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Format Legality
Tiny Leaders Legal
Noble Legal
Magic Duels Legal
Canadian Highlander Legal
Vintage Legal
Highlander Legal
2019-10-04 Legal
Leviathan Legal
Legacy Legal
1v1 Commander Legal
Duel Commander Legal
Oathbreaker Legal
Unformat Legal
Casual Legal
Commander / EDH Legal

Diseased Vermin Discussion

channelfireball12345 on Cardinal Copia's RATS!

1 month ago

Obvious flavor aside, Crypt Rats seems like a bit of a non-bo with most of your deck, given its critical mass of fragile weenies. I'd probably expect it to set you back further than it would your opponents on average. How about Disease Carriers, my personal recommendation, or even Diseased Vermin as potential replacements?

Epicurus on Wait, what type of counter?! (IKORIA UPDATES)

3 months ago

Really fun build, and deliciously quirky!

A few serious card suggestions:

And a few fun card suggestions:

Also, I think it would be fun to use lands with depletion counters like Hickory Woodlot, or storage counter artifacts like Blue Mana Battery.


qwikster on The Plague Comes Out At Night

1 year ago

Okay I'll be honest, I haven't looked too in depth because it's past my bedtime but I'm keeping myself awake with deck scrolling, BUT when I see rat tribal I have to check it out.

Just off the cuff, Diseased Vermin (old card, I would not blame you for not knowing it or understanding that block of text) but with your commander giving him intimidate, all you have to do is swing at a nonblack playing player and get a hit. Keep in mind it doesn't say poison counter (FROM infect) it's an INFECT counter that's totally different. Get some cheap shots in with cheap intimation tricks and then you just watch their life tick away every upkeep.

Second, Swarmyard probably to protect the big baddies like marrow or ink eyes.

Again, haven't gone through your entire deck but it looks really cool so far! Kind of a combination of a tax deck I have and my rat deck! Very cool and flavorful!

Kogarashi on lose life to win

1 year ago

You're off to a decent start, I'd say. Your curve looks good, though you're mana base is a bit weak at the moment (you should be running about 40 land for consistency). Some commentary as I took notes:

Heliod, God of the Sun doesn't seem to fit with the overall theme of the deck. You'd be better off with a card that will give you lifelink creatures or something, to help offset the life-loss from your various effects. Whip of Erebos would be my pick for this deck.

Blood Tribute is going to want more vampires, which are kind of slim in your deck at the moment.

Brainspoil is...poor removal. I would remove it. Killing Wave, on the other hand, is a good choice for sweep, and Remorseless Punishment and Temporal Extortion are nice. I like Near-Death Experience as an alternate win-con, but Path of Bravery is going to hamper that, especially since you don't appear to have super-consistent lifegain.

You have...two? infect cards. I would remove them since infect is really an alternate win-con that you aren't geared toward. Diseased Vermin might make for an alternate rat if you must have a rat, especially if you can give it evasion somehow, and it works with lifelink. It's not a strong pick for the deck, though.

Knight-Captain of Eos wants more soldiers. There are quite a few vampire soldiers, and some of them would work well in this deck. Vicious Conquistador is one that works with your theme.

Seekers' Squire doesn't really seem to fit any of your themes.

Wall of Shards short-circuits your life-drain by giving increasingly large amounts of life to opponents. You don't need it. I would also skip the Hyena Umbra and Hatred.

As for further suggestions, things with Extort are good. There's always the Exquisite Blood + Sanguine Bond combo, which can also use Vizkopa Guildmage in place of Sanguine Bond.

Other suggestions:

Ones that work somewhat with the life drain: Defiant Bloodlord, Retreat to Hagra, Thrull Parasite, Bontu's Monument, Kambal, Consul of Allocation, Underworld Coinsmith (this would be a reason to keep Heliod, actually), Zulaport Cutthroat, and maybe Vizkopa Confessor

Others that pay life or give you life somehow: Arguel's Blood Fast  Flip, Chainer, Dementia Master, Cruel Sadist, Phyrexian Reclamation, Vona, Butcher of Magan, and Elenda, the Dusk Rose (for working with your creatures dying).

All of this, of course, is subject to what you're willing to buy, and you don't have to listen to anything I say. It's your deck, after all.

MitchZesty on A Group of Rats is Called a Mischief

2 years ago

You can cut out Cascading Cataracts for Diseased Vermin. You've already got two fetches for Swamps and Cascading Cataracts is almost completely useless in a mono-colored deck.

I'd also highly recommend some more non-basics like Lake of the Dead, Wasteland, Strip Mine, Peat Bog, Barren Moor, Everglades, Bojuka Bog, Volrath's Stronghold, Urborg, Tomb of Yawgmoth, and Cabal Coffers.

The7thBobba on Pardon My Pets

3 years ago

Awesome! With the coise of tribe, you've ventured straight into Favourite Tow, population: me :D

I'd consider the following, for reasons;

Ogre Slumlord: tokens and deahtouch galore!

Diseased Vermin: if you can get through with it just a few times, the opponent is on a clock!

Typhoid Rats: good early blocking, or for pushing ninjutsu through.

Vampiric Link+ a source of regeneration turns Crypt Rats into a reusable, life-stockpiling sweeper! Check my deck Death comes gnawing for an in depth description :)

Lastly, if you have waaaaay too much money: Marrow-Gnawer and Swarmyard, forobvious reasons.

Stay frosty, dude!

The7thBobba on Rats

3 years ago

It's a tad expensive, but trust you me: Diseased Vermin is Soooo much fun! Also: If you go with marrow-gnawer he needs a queen: Ink-Eyes, Servant of Oni is beautiful and all that deathtouch is gonna have her ninjutsu be a near sure-hit. If you feel like it, I have a rat deck - that I'm mighty proud of - that you could steal a gander at: Death comes gnawing may the Force be with you :)

mcjordalini on Sidisi Surprise

4 years ago


Keep in mind, these are just recommendations from my point of view on what a mono-black Relentless Rats 1v1 deck should look like. So feel free to tell me off if I insult you in anyway.



-1 Sidisi, Undead Vizier // He/she (it?) has a good effect, allowing you to tutor for a small price, but if you are running a rat deck, this isn't exactly what you want to be at the helm.

+1 Marrow-Gnawer // You've got him in the 99, but this is who you really want to be commanding the army! That fear on your rats is ridiculous. Plus he spawns rats himself, is the same CMC, and has practically the same small price that Sidisi has for his activated ability.


-1 Petrified Field // The only lands you need in the deck are basic Swamps. Every other land is pure luxurious utility. If your opponent is focusing on destroying your non-basics, they're doing it wrong, because you win via overrunning them, not with special lands and combos.

-1 Cavern of Souls // You have multiple copies of your best creature in the deck (Relentless Rats), so who cares if a few get countered? Your opponent is just wasting their answers, leaving them wide open for a game winning Death Cloud, or some other bomb. Every other creature in the deck is pure support for your rats.

-1 Ghost Quarter // You won't need land destruction in a rat deck. You will out tempo 75% of opponents.

-1 Tectonic Edge // "".

+7 Swamp // This will put your land count at a solid 36 with a spell count of 63. This split provides a terrific land:spell ratio that is very consistent (This is purely from personal experience. I have never seen a deck with less than 36 lands recover from a total board wipe faster than one with).


-1 Malicious Affliction // This just isn't thaaat great of a kill card. You'll see why in some later suggestions.

+1 Sudden Spoiling // Amazing card. Makes Emrakul, the Aeons Torn a little bitch. This has a very nice and effective boardwipe combo below in the Sorceries section.


-1 Liliana Vess

-1 Liliana of the Dark Realms

-1 Sorin Markov

// It would be best to ultimately pick one of these guys (two if you are starving for one of the abilities they offer). You do have the creature base to protect Planeswalkers more than good enough. I just personally have found that Planeswalkers tend to be dead cards in hand, or a meat shield that doesn't even get to be used for it's intended purpose more than not. But like I said, they fit... I just recommend other spells that can for sure be used.


-1 Mogis's Marauder // He just isn't that great. You're better off replacing him with another rat or another utility creature. I will list some options that I find would be suitable replacements.

+1 Swarm of Rats // Big beater

+1 Throat Slitter // Great removal with fear.

+1 Locust Miser // Hilarious against people who rely solely on card advantage in the hand (looking at you blue players >_>).

+1 Gnat Miser // Lesser version of Locust Miser if you aren't keen on his CMC. 1 card disadvantage isn't as good as 2, but it's still 1 less action/answer your opponent has available to them.

+1 Diseased Vermin // Just hilarious in a 1v1 setting, especially with fear!

+1 Crypt Ghast // If you're set on having extra mana production.

+1 Magus of the Coffers // Cabal Coffers on a stick. Again, if you are set on extra mana production.

+1 Nezumi Graverobber|Nighteyes the Desecrator // This guy is awesome graveyard hate. His flip doubles as good redundancy for Ink-Eyes as well.


-1 Curse of the Cabal // While you have the ability to bring your creatures back en mass via Patriarch's Bidding and Twilight's Call, I am not so sure this is that effective in this deck.

-1 Toxic Deluge // I understand this gets rid of indestructible creatures, but you don't need this and Mutilate in the deck. Pick one or the other, or replace them both all together.

-1 Mutilate // See above.

-1 Damnable Pact // If this were instant speed, holy shit it would be so worth the mana investment. See below for what I recommend to replace it.

+1 In Garruk's Wake // Fucking awesome one-sided board wipe. Hilarious to see the faces of super-friend players.

+1 Plague Wind // Same as above, except has a regeneration prevention clause instead of Plansewalker removal.

+1 Decree of Pain // Freaking awesome board wipe. This could replace your Damnable Pact. It's mana cost isn't something to be concerned about if you're willing to use Damnable Pact as a mana sink in the first place. It can be cycled for less and it still be a board wipe when you play Sudden Spoiling, then cycle this. You've effectively just got rid of any threat that Emrakul, the Aeons Torn, Avacyn, Angel of Hope, Wurmcoil Engine, Blightsteel Colossus, Platinum Angel, Platinum Emperion, you name it.. may pose if not removed properly.

+1 Ruinous Path // Yes it's sorcery speed, but you can kill a Planeswalker with it, and it has awaken 4 if you don't need it's main effect. Or a board wipe just happened and you draw this instead of a creature (I've saved myself from losing the game after board wipes with awaken X several times. It's amazing when it pulls through).


-1 Ashnod's Altar // You don't seem to need the sac outlet or the costly mana boost.

-1 Charcoal Diamond // You don't need the 1 mana this offers you.

-1 Thornbite Staff // If you're not running Sidisi, this is unnecessary.

-1 Urza's Incubator // Don't need this at all.

Fill all empty slots with anything else you want. :)